Thermal power generation waste heat fractional utilization device

Abstract

The utility model relates to the technical field of thermal power generation, in particular to a thermal power generation waste heat fractional utilization device which comprises a bottom plate, a heat absorption shell is fixedly connected to the upper end face of the bottom plate, a first heat absorption cavity is formed in the heat absorption shell, a second heat absorption cavity is formed in the left end wall of the first heat absorption cavity, and an air pump is fixedly arranged at the upper end of the bottom plate and communicated with a connecting pipe. The air pump communicates with a heat dissipation pipe which firstly enters the first heat absorption cavity and then enters the second heat absorption cavity, waste gas moves in the heat dissipation pipe, waste gas heat can be discharged into water in the first heat absorption cavity and the second heat absorption cavity, and fractional utilization of thermal power generation waste heat is achieved; a drainage pump is fixedly arranged on the right side wall of the first heat absorption cavity and communicates with a drainage pipe, and a communicating pump communicating with the second heat absorption cavity and the first heat absorption cavity is fixedly arranged on the end wall between the first heat absorption cavity and the second heat absorption cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power generation, in particular to a device for fractional utilization of waste heat from thermal power generation. Background Art

[0002] Thermal power generation is a power generation method that uses the heat energy generated by the combustion of combustibles to convert it into electrical energy through a power generation device. Thermal power generation is divided into three forms according to the fuel burned: coal-fired power generation, oil-fired power generation and gas-fired power generation. Thermal power generation is an important power generation method, but the thermal power generation process will emit a large amount of exhaust gas, which will carry heat and dissipate into the air, causing energy waste. However, since the heat of the exhaust gas is not much, when water absorbs it, it is easy to reduce the absorption efficiency due to the increase in water temperature;

[0003] Therefore, it is necessary to design a device for fractional utilization of waste heat from thermal power generation to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a device for fractional utilization of waste heat from thermal power generation, so as to solve the problem that when water absorbs the heat of exhaust gas, the absorption efficiency is easily reduced due to the increase in water temperature, thereby solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for fractional utilization of waste heat from thermal power generation, comprising a bottom plate, an upper surface of the bottom plate being fixedly connected to a heat absorbing shell, a first heat absorbing chamber being arranged in the heat absorbing shell, a second heat absorbing chamber being arranged in the left end wall of the first heat absorbing chamber, an air pump being fixedly arranged on the upper surface of the bottom plate, the air pump being connected to a connecting pipe connected to an exhaust port of the thermal power generation, a heat dissipation pipe being connected to the air pump and first entering the first heat absorbing chamber and then entering the second heat absorbing chamber, the left end of the heat dissipation pipe passing through the heat absorbing shell and being connected to a purification device, and the waste gas moving in the heat dissipation pipe can discharge the waste gas heat into the water in the first heat absorbing chamber and the second heat absorbing chamber, thereby realizing fractional utilization of waste heat from thermal power generation;

[0007] A drainage pump is fixedly provided on the right side wall of the first heat absorption chamber, and the drainage pump is connected to a drainage pipe. After the water temperature reaches a preset value, the drainage pump can be started to extract water in the first heat absorption chamber and discharge it through the drainage pipe. A connecting pump connecting the second heat absorption chamber and the first heat absorption chamber is fixedly provided on the end wall between the first heat absorption chamber and the second heat absorption chamber. Starting the connecting pump can extract water in the second heat absorption chamber into the first heat absorption chamber.

[0008] As a preferred solution of the utility model, a temperature detector is fixedly provided on the upper end of the drainage pump. The temperature detector is located in the first heat absorption chamber and can detect the water temperature in the first heat absorption chamber and then start the drainage pump.

[0009] As a preferred solution of the utility model, a first water level sensor is fixedly provided on the upper end of the communication pump, and the first water level sensor can detect the water level in the first heat absorption chamber and then start the communication pump.

[0010] As a preferred solution of the utility model, a plurality of support columns are fixedly connected to the lower end surface of the base plate, and the support columns are used to support the base plate.

[0011] As a preferred solution of the utility model, a pumping valve is fixedly provided on the lower end wall of the second heat absorption chamber, the pumping valve is connected to the second heat absorption chamber, a pumping pipe is connected to the lower end of the pumping valve, and the pumping pipe can be connected to an external water source.

[0012] As a preferred solution of the utility model, a second water level sensor is fixedly provided on the upper end of the water pumping valve, and the second water level sensor can detect the water level in the second heat absorption chamber, and then activate the second water level sensor to pump water into the second heat absorption chamber.

[0013] Beneficial effects: The utility model can connect with the exhaust gas output port of thermal power generation through the connecting pipe by means of the air pump, and then extract through the air pump and discharge through the heat dissipation pipe at a uniform speed. The heat dissipation pipe is arranged to be wound in the first heat absorption chamber and the second heat absorption chamber, so that the heat of the exhaust gas can be discharged into the water in the first heat absorption chamber and the second heat absorption chamber when the exhaust gas flows in the heat dissipation pipe. According to the flow sequence of the exhaust gas in the heat dissipation pipe, the heat of the exhaust gas can be absorbed and utilized in batches by the water in the first heat absorption chamber and the second heat absorption chamber, so as to complete the batch utilization of the waste heat of thermal power generation.

[0014] By setting up a drainage pump, the hot water in the first heat absorption chamber can be discharged after the water temperature in the first heat absorption chamber rises to a preset value. By setting up a first water level sensor, the water in the second heat absorption chamber can be pumped into the first heat absorption chamber after the water in the first heat absorption chamber is discharged, thereby realizing the utilization of waste heat from thermal power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall three-dimensional diagram of a thermal power generation waste heat fractional utilization device of the utility model;

[0016] Figure 2 This is a three-dimensional top view of a device for fractional utilization of waste heat from thermal power generation according to the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of a device for fractional utilization of waste heat from thermal power generation according to the utility model;

[0018] Figure 4 for Figure 3 A top view of

[0019] In the figure: 101, bottom plate; 102, support column; 103, heat absorption shell; 104, first heat absorption chamber; 105, drainage pump; 106, temperature detector; 107, drainage pipe; 108, air pump; 109, connecting pipe; 111, heat dissipation pipe; 112, second heat absorption chamber; 113, connecting pump; 114, first water level sensor; 115, pumping valve; 116, second water level sensor; 117, pumping pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A device for fractional utilization of waste heat from thermal power generation, comprising a bottom plate 101, a heat absorption shell 103 is fixedly connected to the upper end surface of the bottom plate 101, a first heat absorption chamber 104 is arranged in the heat absorption shell 103, a second heat absorption chamber 112 is arranged in the left end wall of the first heat absorption chamber 104, an air pump 108 is fixedly arranged at the upper end of the bottom plate 101, the air pump 108 is connected with a connecting pipe 109 connected with an exhaust port of the thermal power generation, the air pump 108 is connected with a heat dissipation pipe 111 which first enters the first heat absorption chamber 104 and then enters the second heat absorption chamber 112, the left end of the heat dissipation pipe 111 passes through the heat absorption shell 103 and is connected with a purification device, and the waste gas moves in the heat dissipation pipe 111, so that the waste gas heat can be discharged into the water in the first heat absorption chamber 104 and the second heat absorption chamber 112, thereby realizing fractional utilization of waste heat from thermal power generation;

[0025] A drainage pump 105 is fixedly provided on the right side wall of the first heat absorption chamber 104, and the drainage pump 105 is connected to a drainage pipe 107. After the water temperature reaches a preset value, the drainage pump 105 can be started to extract water in the first heat absorption chamber 104 and discharge it through the drainage pipe 107. A connecting pump 113 connecting the second heat absorption chamber 112 and the first heat absorption chamber 104 is fixedly provided on the end wall between the first heat absorption chamber 104 and the second heat absorption chamber 112. When the connecting pump 113 is started, the water in the second heat absorption chamber 112 can be extracted into the first heat absorption chamber 104.

[0026] Preferably, a temperature detector 106 is fixedly provided on the upper end of the drainage pump 105 . The temperature detector 106 is located in the first heat absorption chamber 104 and can detect the water temperature in the first heat absorption chamber 104 and then start the drainage pump 105 .

[0027] Preferably, a first water level sensor 114 is fixedly provided on the upper end of the communication pump 113 , and the first water level sensor 114 can detect the water level in the first heat absorption chamber 104 and then start the communication pump 113 .

[0028] Preferably, a plurality of support columns 102 are fixedly connected to the lower end surface of the bottom plate 101 , and the support columns 102 are used to support the bottom plate 101 .

[0029] Preferably, a pumping valve 115 is fixedly provided on the lower end wall of the second heat absorption chamber 112, and the pumping valve 115 is connected to the second heat absorption chamber 112. A pumping pipe 117 is connected to the lower end of the pumping valve 115, and the pumping pipe 117 can be connected to an external water source.

[0030] Preferably, a second water level sensor 116 is fixedly provided on the upper end of the pumping valve 115 , and the second water level sensor 116 can detect the water level in the second heat absorption chamber 112 , and then activate the second water level sensor 116 to pump water into the second heat absorption chamber 112 .

[0031] In summary, when in use, the bottom plate 101 is placed on the use plane through the support column 102, and then the connecting pipe 109 is connected to the exhaust outlet of the thermal power generation waste gas, the water pumping pipe 117 is connected to the external water source, and the drainage pipe 107 is connected to the external collection container;

[0032] At this time, the second water level sensor 116 detects that the water level in the second heat absorption chamber 112 is insufficient, and then the pumping valve 115 is activated to pump water into the second heat absorption chamber 112 through the pumping pipe 117. At the same time, the first water level sensor 114 detects that the water level in the first heat absorption chamber 104 is insufficient, and then the communication pump 113 is activated to pump water in the second heat absorption chamber 112 into the first heat absorption chamber 104. At this time, there is water in both the second heat absorption chamber 112 and the first heat absorption chamber 104.

[0033] At this time, the air pump 108 is started to evenly extract the exhaust gas and discharge it into the heat dissipation pipe 111 at a uniform speed. The exhaust gas first passes through the first heat absorption chamber 104 to transfer heat to the water in the first heat absorption chamber 104, and then passes through the second heat absorption chamber 112 to transfer the remaining heat to the water in the second heat absorption chamber 112, and then is discharged through the left end of the heat dissipation pipe 111 for purification;

[0034] The exhaust gas passing through the first heat absorption chamber 104 carries a lot of heat, so the water in the first heat absorption chamber 104 heats up quickly. When the water in the first heat absorption chamber 104 heats up to the preset temperature, the temperature detector 106 detects it and starts the drain pump 105 to discharge the water in the first heat absorption chamber 104 through the drain pipe 107. After the water in the first heat absorption chamber 104 is discharged, the first water level sensor 114 detects that the water level has dropped and starts the communication pump 113 to pump the water in the second heat absorption chamber 112 into the first heat absorption chamber 104. At this time, the second water level sensor 116 detects that the water level has dropped and starts the pumping valve 115 to pump water into the second heat absorption chamber 112 through the pumping pipe 117 for the next thermal power generation waste heat absorption.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal power generation waste heat fractional utilization device, comprising a bottom plate (101), characterized in that: The upper end surface of the bottom plate (101) is fixedly connected to a heat absorbing shell (103), a first heat absorbing chamber (104) is provided in the heat absorbing shell (103), a second heat absorbing chamber (112) is provided in the left end wall of the first heat absorbing chamber (104), an air pump (108) is fixedly provided at the upper end of the bottom plate (101), the air pump (108) is connected to a connecting pipe (109) connected to an exhaust port of a thermal power generation unit, the air pump (108) is connected to a heat dissipation pipe (111) that first enters the first heat absorbing chamber (104) and then enters the second heat absorbing chamber (112), the left end of the heat dissipation pipe (111) passes through the heat absorbing shell (103) and is connected to a purification device; A drainage pump (105) is fixedly provided on the right side wall of the first heat absorption chamber (104), and the drainage pump (105) is connected to a drainage pipe (107). When the water temperature reaches a preset value, the drainage pump (105) can be started to extract water in the first heat absorption chamber (104) and discharge it through the drainage pipe (107). A connecting pump (113) connecting the second heat absorption chamber (112) and the first heat absorption chamber (104) is fixedly provided on the end wall between the first heat absorption chamber (104) and the second heat absorption chamber (112). When the connecting pump (113) is started, the water in the second heat absorption chamber (112) can be extracted into the first heat absorption chamber (104).

2. The device for fractional utilization of waste heat from thermal power generation according to claim 1, characterized in that: A temperature detector (106) is fixedly provided on the upper end of the drainage pump (105); the temperature detector (106) is located in the first heat absorption chamber (104) and is capable of detecting the water temperature in the first heat absorption chamber (104) and thus starting the drainage pump (105).

3. The device for fractional utilization of waste heat from thermal power generation according to claim 2, characterized in that: A first water level sensor (114) is fixedly provided on the upper end of the communication pump (113), and the first water level sensor (114) is capable of detecting the water level in the first heat absorption chamber (104) and thus starting the communication pump (113).

4. The device for fractional utilization of waste heat from thermal power generation according to claim 3, characterized in that: A plurality of support columns (102) are fixedly connected to the lower end surface of the bottom plate (101).

5. The device for fractional utilization of waste heat from thermal power generation according to claim 4, characterized in that: A water pumping valve (115) is fixedly provided on the lower end wall of the second heat absorption chamber (112); the water pumping valve (115) is connected to the second heat absorption chamber (112); and a water pumping pipe (117) is provided at the lower end of the water pumping valve (115).

6. The device for fractional utilization of waste heat from thermal power generation according to claim 5, characterized in that: A second water level sensor (116) is fixedly provided on the upper end of the water pumping valve (115), and the second water level sensor (116) is capable of detecting the water level in the second heat absorption chamber (112), thereby activating the second water level sensor (116) to pump water into the second heat absorption chamber (112).

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